Flight number record

DL 312

Delta Air Lines · Minneapolis to Honolulu

Route: MSP → HNL
Departs: 10:10
Flights: 365
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s DL 312, check with Delta Air Lines.

DL 312 lands a B+, 5 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 365 flights, with a median arrival 3 minutes early.

Set against the rest of the country, DL 312's record is 5 points better than the US average of 77.3%. That gap is worth roughly 51 fewer late arrivals for every thousand flights.

On time

82.4%

Arrivals under 15 minutes late, of 363 completed flights

Avg delay

79 min

Across delayed arrivals only, not all flights

Cancelled

0.55%

National rate is 1.89%

1 hour+ late

6.1%

National rate is 8.3%

These figures cover 365 flights between September 2025 and August 2026. The median arrival is 3 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

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Schedule

When DL 312 flies

DL 312 flies MSP to HNL without a single fixed slot. Its most common scheduled departure was 10:10, used on 126 of 365 flights, with 10:15 (54 flights) and 10:05 (46 flights) next.

Departs 10:10126 flights34.5%
Departs 10:1554 flights14.8%
Departs 10:0546 flights12.6%

Scale runs 0% to 100%.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 10:10 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and DL 312 runs level with that at 82.4%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

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Against the route

DL 312 next to MSP to HNL

Across its whole network Delta Air Lines managed 81.1%, close to this flight's figure.

DL 312 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 312	365	82.4%	79 min	0.55%	B+
All Delta Air Lines on MSP–HNL	365	82.4%	79 min	0.55%	B+
All carriers on MSP–HNL	365	82.4%	79 min	0.55%	B+
Delta Air Lines, whole network	1,039,517	81.1%	71 min	1.74%	B

Across the year

DL 312 quarter by quarter

DL 312 did not run the same all year. Its best quarter was Jul–Sep 2025 at 93.3% on time and its weakest Jan–Mar 2026 at 69.7%, a swing of 24 points on roughly 73 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Jul–Sep 202530 flights93.3%
Oct–Dec 202592 flights76.9%
Jan–Mar 202690 flights69.7%
Apr–Jun 202691 flights92.3%
Jul–Sep 202662 flights88.7%

Scale runs 60% to 100%.

By weekday, DL 312 ranged from 76.9% on Saturday to 88.7% on Monday. With about 52 flights behind each day, a spread of 12 points is inside normal variation, so the day you fly is not worth changing for this flight.

Arrival by arrival

How late DL 312 runs when it is late

DL 312 often beats the schedule: 107 of 363 completed flights, 29%, arrived 15 minutes or more early. The 64 late arrivals split 25 under half an hour, 17 between 30 and 60 minutes, and 22 an hour or more.

15+ min early107 flights29.5%
Within 15 min192 flights52.9%
15–29 min late25 flights6.9%
30–59 min late17 flights4.7%
1–2 hours late8 flights2.2%
2+ hours late14 flights3.9%

Scale runs 0% to 100%.

Share of 363 completed flights by arrival against schedule.

13 of 48 late departures made up the time and arrived on time, 27% of them. In the other direction, 29 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at HNL.

The worst days

Worst days for DL 312

The latest arrival of the period was on 5 December 2025, 6 hours 51 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.

The latest arrivals of DL 312 in the period
Date	Arrived late by	Largest filed cause
5 December 2025	6 hours 51 minutes	Carrier
29 November 2025	5 hours 13 minutes	Carrier
23 December 2025	4 hours 11 minutes	Carrier
16 July 2026	4 hours 6 minutes	Carrier
11 March 2026	4 hours 5 minutes	Carrier

Delay causes

Why DL 312 runs late

Carrier accounts for 71% of the 5,057 delay minutes carriers reported here, and the remaining four split what is left.

Carrier
71%
National Airspace System
22%
Late-arriving aircraft
3%
Extreme weather
3%

The largest share of delay minutes, 71%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,612 of the 5,057 delay minutes reported here. The split is drawn from 5,057 delay minutes reported on DL 312.

Cancellations are rare at 0.55%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

Connections and routes

What a delay on this flight costs

6.1% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.

At 3,972 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

Every one of the 365 flights under DL 312 in the data flew MSP to HNL. The number was not reused on any other city pair, which makes this a clean record of one route.

One caution: this is a thin sample. 365 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking DL 312

For a booking, read DL 312 as 82.4% on time with 0.55% cancelled over 365 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

A flight number here means Delta Air Lines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures